This phenomenal Cine Lens has the same outstanding quality as Rokinon's 14mm F2.8 Wide Angle Lens. It features a "De-clicked" Aperture to reduce any noise and jerking sound while shooting. This lens is follow-focus compatible to provide a convenient, quick, and precise method for controlling the focus on your camera without the need to constantly reach over to the front of the lens. 14mm T3.1 Cine Super Wide Angle Lens is best used for shooting video.